Added subtle animation for unlocking screen.

Change-Id: Id691fec4f2e492682a53d6855090524f000ddc6c
Bug: 134965724
Bug: 134952761
Test: N/A
diff --git a/services/core/java/com/android/server/wm/AppTransition.java b/services/core/java/com/android/server/wm/AppTransition.java
index b6af939..557a609 100644
--- a/services/core/java/com/android/server/wm/AppTransition.java
+++ b/services/core/java/com/android/server/wm/AppTransition.java
@@ -23,6 +23,7 @@
 import static android.view.WindowManager.TRANSIT_CRASHING_ACTIVITY_CLOSE;
 import static android.view.WindowManager.TRANSIT_DOCK_TASK_FROM_RECENTS;
 import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_NO_ANIMATION;
+import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_SUBTLE_ANIMATION;
 import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_TO_SHADE;
 import static android.view.WindowManager.TRANSIT_KEYGUARD_GOING_AWAY;
 import static android.view.WindowManager.TRANSIT_KEYGUARD_GOING_AWAY_ON_WALLPAPER;
@@ -1802,8 +1803,10 @@
         }
         final boolean toShade =
                 (mNextAppTransitionFlags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_TO_SHADE) != 0;
+        final boolean subtle =
+                (mNextAppTransitionFlags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_SUBTLE_ANIMATION) != 0;
         return mService.mPolicy.createHiddenByKeyguardExit(
-                transit == TRANSIT_KEYGUARD_GOING_AWAY_ON_WALLPAPER, toShade);
+                transit == TRANSIT_KEYGUARD_GOING_AWAY_ON_WALLPAPER, toShade, subtle);
     }
 
     int getAppStackClipMode() {
diff --git a/services/core/java/com/android/server/wm/AppTransitionController.java b/services/core/java/com/android/server/wm/AppTransitionController.java
index 6c5ef52..d4e95cf 100644
--- a/services/core/java/com/android/server/wm/AppTransitionController.java
+++ b/services/core/java/com/android/server/wm/AppTransitionController.java
@@ -23,6 +23,7 @@
 import static android.view.WindowManager.TRANSIT_CRASHING_ACTIVITY_CLOSE;
 import static android.view.WindowManager.TRANSIT_DOCK_TASK_FROM_RECENTS;
 import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_NO_ANIMATION;
+import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_SUBTLE_ANIMATION;
 import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_TO_SHADE;
 import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_WITH_WALLPAPER;
 import static android.view.WindowManager.TRANSIT_KEYGUARD_GOING_AWAY;
@@ -425,7 +426,8 @@
     private void handleNonAppWindowsInTransition(int transit, int flags) {
         if (transit == TRANSIT_KEYGUARD_GOING_AWAY) {
             if ((flags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_WITH_WALLPAPER) != 0
-                    && (flags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_NO_ANIMATION) == 0) {
+                    && (flags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_NO_ANIMATION) == 0
+                    && (flags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_SUBTLE_ANIMATION) == 0) {
                 Animation anim = mService.mPolicy.createKeyguardWallpaperExit(
                         (flags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_TO_SHADE) != 0);
                 if (anim != null) {
@@ -437,7 +439,8 @@
                 || transit == TRANSIT_KEYGUARD_GOING_AWAY_ON_WALLPAPER) {
             mDisplayContent.startKeyguardExitOnNonAppWindows(
                     transit == TRANSIT_KEYGUARD_GOING_AWAY_ON_WALLPAPER,
-                    (flags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_TO_SHADE) != 0);
+                    (flags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_TO_SHADE) != 0,
+                    (flags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_SUBTLE_ANIMATION) != 0);
         }
     }
 
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 1332e6d..5c83b02 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -3471,12 +3471,14 @@
     /**
      * Starts the Keyguard exit animation on all windows that don't belong to an app token.
      */
-    void startKeyguardExitOnNonAppWindows(boolean onWallpaper, boolean goingToShade) {
+    void startKeyguardExitOnNonAppWindows(boolean onWallpaper, boolean goingToShade,
+            boolean subtle) {
         final WindowManagerPolicy policy = mWmService.mPolicy;
         forAllWindows(w -> {
             if (w.mAppToken == null && policy.canBeHiddenByKeyguardLw(w)
                     && w.wouldBeVisibleIfPolicyIgnored() && !w.isVisible()) {
-                w.startAnimation(policy.createHiddenByKeyguardExit(onWallpaper, goingToShade));
+                w.startAnimation(policy.createHiddenByKeyguardExit(
+                        onWallpaper, goingToShade, subtle));
             }
         }, true /* traverseTopToBottom */);
     }
diff --git a/services/core/java/com/android/server/wm/KeyguardController.java b/services/core/java/com/android/server/wm/KeyguardController.java
index 169f03b..ca4749f 100644
--- a/services/core/java/com/android/server/wm/KeyguardController.java
+++ b/services/core/java/com/android/server/wm/KeyguardController.java
@@ -19,6 +19,7 @@
 import static android.os.Trace.TRACE_TAG_ACTIVITY_MANAGER;
 import static android.view.Display.DEFAULT_DISPLAY;
 import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_NO_ANIMATION;
+import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_SUBTLE_ANIMATION;
 import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_TO_SHADE;
 import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_WITH_WALLPAPER;
 import static android.view.WindowManager.TRANSIT_KEYGUARD_GOING_AWAY;
@@ -26,6 +27,7 @@
 import static android.view.WindowManager.TRANSIT_KEYGUARD_UNOCCLUDE;
 import static android.view.WindowManager.TRANSIT_UNSET;
 import static android.view.WindowManagerPolicyConstants.KEYGUARD_GOING_AWAY_FLAG_NO_WINDOW_ANIMATIONS;
+import static android.view.WindowManagerPolicyConstants.KEYGUARD_GOING_AWAY_FLAG_SUBTLE_WINDOW_ANIMATIONS;
 import static android.view.WindowManagerPolicyConstants.KEYGUARD_GOING_AWAY_FLAG_TO_SHADE;
 import static android.view.WindowManagerPolicyConstants.KEYGUARD_GOING_AWAY_FLAG_WITH_WALLPAPER;
 
@@ -238,6 +240,9 @@
         if ((keyguardGoingAwayFlags & KEYGUARD_GOING_AWAY_FLAG_WITH_WALLPAPER) != 0) {
             result |= TRANSIT_FLAG_KEYGUARD_GOING_AWAY_WITH_WALLPAPER;
         }
+        if ((keyguardGoingAwayFlags & KEYGUARD_GOING_AWAY_FLAG_SUBTLE_WINDOW_ANIMATIONS) != 0) {
+            result |= TRANSIT_FLAG_KEYGUARD_GOING_AWAY_SUBTLE_ANIMATION;
+        }
         return result;
     }